Answers

Are you sure it's a Laburnam? As far as I'm aware, there is no variety that flowers in July, and certainly not one that the birds, pigeons or otherwise, would eat. Any chance of a picture? Only thing I can think of that's similar, and flowers now, is Koelreuteria paniculata - google it, tell me what you think. The one noticeable difference is that it holds its flowers upright in a cluster, not dangling down.

Well that defo looks like Laburnam, doesn't it. And no, you can't put more than one pic with a question - you can put them in your gallery and direct people there though. But if you've got seedpods now, surely it flowered a while back?